tertiary

Agatized coral (Tertiary; Withlacoochee River, Georgia, USA) 1
by James St. John

Rhyncholampas gouldii (malformed fossil echinoid) (Suwannee Limestone, Lower Oligocene; Live Oak, Florida, USA) 2
by James St. John

Rhyncholampas gouldii (malformed fossil echinoid) (Suwannee Limestone, Lower Oligocene; Live Oak, Florida, USA) 1
by James St. John

Gold (Tertiary; Round Mountain Mine, Toquima Range, Nevada, USA) 8
by James St. John

Gold (Tertiary; Round Mountain Mine, Toquima Range, Nevada, USA) 7
by James St. John

Processed leonardite (Stony Creek Mine, North Dakota, USA)
by James St. John

Leonardite (Sentinel Butte Formation, Paleocene; Stony Creek Mine, North Dakota, USA) 4
by James St. John

Leonardite (Sentinel Butte Formation, Paleocene; Stony Creek Mine, North Dakota, USA) 3
by James St. John

Leonardite (Sentinel Butte Formation, Paleocene; Stony Creek Mine, North Dakota, USA) 1
by James St. John

Leonardite (Sentinel Butte Formation, Paleocene; Stony Creek Mine, North Dakota, USA) 2
by James St. John

Serpentinite (New Idria Serpentinite, Middle Miocene, ~14 Ma; Green Fire Mine, California, USA) 9
by James St. John

Serpentinite (New Idria Serpentinite, Middle Miocene, ~14 Ma; Green Fire Mine, California, USA) 7
by James St. John

Serpentinite (New Idria Serpentinite, Middle Miocene, ~14 Ma; Green Fire Mine, California, USA) 8
by James St. John

Serpentinite (New Idria Serpentinite, Middle Miocene, ~14 Ma; Green Fire Mine, California, USA) 6
by James St. John

Serpentinite (New Idria Serpentinite, Middle Miocene, ~14 Ma; Green Fire Mine, California, USA) 3
by James St. John

Serpentinite (New Idria Serpentinite, Middle Miocene, ~14 Ma; Green Fire Mine, California, USA) 4
by James St. John

Serpentinite (New Idria Serpentinite, Middle Miocene, ~14 Ma; Green Fire Mine, California, USA) 2
by James St. John

Serpentinite (New Idria Serpentinite, Middle Miocene, ~14 Ma; Green Fire Mine, California, USA) 1
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 75
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 74
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 73
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 72
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 71
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 70
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 69
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 68
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 67
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 66
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 65
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 64
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 63
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 62
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 61
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 60
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 58
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 59
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 57
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 56
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 55
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 54
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 53
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 52
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 51
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 50
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 49
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 48
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 47
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 46
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 44
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 45
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 43
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 41
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 42
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 40
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 39
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 38
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 36
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 37
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 35
by James St. John

Lahar (Thirtynine Mile Volcanics, Upper Eocene; 34-36 Ma; Evergreen Station South roadcut, Colorado, USA) 34
by James St. John